Experts believe seborrheic dermatitis may relate to an overgrowth of Malassezia yeast on the scalp. Shampoos with antifungal agents like ketoconazole, selenium sulfide, and zinc pyrithione can help.

zinc pyrithione and fermented tea extract, “this shampoo is considered safe in pregnancy to help address the redness, flaking and itching that can be associated with seborrheic dermatitis ...

Our final diagnosis was allergic contact dermatitis (ACD) from p-tert-butylphenol formaldehyde resin and zinc diethyldithiocarbamate, substances used for neoprene production.